Dumping-car



(No Model.)

-E-BOYDEN, I

DUMPING GAR.

No. 250,420. Patented Dec. 6,1881.

UNITED STATES PATENT OFFICE.

GEORGE E. BOYDEN, OF READVILLE, MASSACHUSETTS.

DUMPlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 250,420, dated December 6, 1881,

Application filed July 11, 1881. (No model.)

To all whom it may concern Be it known that I, GEORGE E. BOYDEN, of Readville,in the county of Norfolk and State of Massachusetts, have invented a new and useful improvement in the construction, ar-

rangement of parts, and mode of operating the same, in dump, gravel, and coal cars, of which the following is a specification.

Heretofore it has been common to construct [O the rocker-bur of cast-iron, which had to be made very heavy, and is never safe, for the reason that it is at any time liable to break, and then the car has to be thrown aside or sent to the shop for repairs, thus causing great delay as well as great annoyance and increased expense. Now, to remedy this evil is the aim of this feature of my invention, by reducing the dead weight of the rocker-bar, and increasing its strength, thus facilitating its operation, and

improving its general appearance; and the invention consists in the construction and arrangement of parts, as hereinafter described, by which the weight of the car is reduced and its durability increased.

2 5 Heretofore the rocker-beds were simply suspended from the frame-work, the rocker-bar resting on wooden beams, which formed the rocker-bed, depending on the weight of the body of the car and the load thereon to keep 0 it in place. Should it happen that the rockerbed becomes crushed in or out of place the weight of the car and load falls onto the perchbeam, requiring great force to raise and dump it. This, by my new brace-bar, in connection with my rocker bar and bed, is entirely avoided.

It may be here said that in dump-cars as at present constructed the framesare made of wood. If, however, it is desired to increase the carrying capacity of the car, the wooden beam has to be made proportionately thicker and heavier. This would throw the draw-bar out of its proper position and below the standard height,and also below the line of draft. Should this be done the buffers would also be out of line, and great difficulty would be experienced in coupling the mismatched draw bars to each other; hence I make the sides of the car of iron or steel, as may be preferred-either solid or hollow, if preferred. When made hollow 5c the center of each frame'between theiron plates may be braced with wood, but I prefer the iron. Thus by forming the whole frame of iron I am enabled to increase the carrying capacity of the car from six to ten tons by increasing the dead weight only seven hundred and twenty pounds, the six-ton car weighing ten thousand nine hundred and seventy pounds, while the ten-ton car weighs eleven thousand six hundred and ninety pounds, thus nearly doubling the capacity, while greatly lessening the dead weight and the proportionate expense.

Another advantage of the iron frame, the hanger bed and bar, and their brace-bar extending from one to the other is, the car can be made much longer; the wheels are placed farther apart, by means of which the constant dipping and rocking so common in short cars is entirely obviated, also the liability of upending and well-known hammering of the rails.

It is obvious that many other advantages are gained by my general construction, such as doing away with the cast-iron jaw-braces which are found necessary in the wooden-form construction. These frame-iron jaw-braces weigh 7 5 from seventy-five to one hundred pounds each, besides the expense of casting and the bolts necessary to hold them in place, each car being provided with four. Thus, besides their cost, the aggregate dead weight in a year is enormous.

Referring to the drawings and the letters of reference thereon, and which form part of this specification, Figure 1 represents an end plan and side elevation in perspective, clearly showing all the parts in position. Fig. 2 is a detached section of a portion of my side frame. Fig. 3 is a sectional elevation of a rocker-bed hanger, showing a portion of the brace-bar resting in the recess in the hanger prepared for it. Fig. 4 is a side view of the rocker-bed; and Fig.

5 an end elevation, partly in section, of the same, clearly showing its T shape in crosssection.

The same letters represent like parts in all 9 5 the figures.

A is the frame, which, if desired, may be made in one piece or in sections, as may be preferred.

B is one of the bracing bars or stays, reach- 10 ing from one rocker-bed hanger to another at the opposite end of the car-frame, by means of which saidhangers are rigidly secured together.

Braces reaching from theframe to the braceb ar may be used, if desired, their function being obvious.

C shows the T or corrugated rocker-bar, and D the rocker-bed hanger; E, the draw-bar and bufi'er.

The operation of the devices will be readily understood from the foregoing description.

Having now described my invention, its construction, and operation, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination,in a dumping-car, of the T-shaped or corrugated rocker-bar (J, rockerbed hanger D,and brace-bar B, said brace-bar extending from one rocker-bed to the other longitudinally, rigidly securing each to the other, in the manner shown and described.

2. The combinatiomin a dumping-car, of the frame A, constructed, as described, of one or more pieces, the hangers D and rocker-bed, the bar 0 and braces B, extending from one rocker-bed hanger to the other, or from front to rear, and secured thereto, whereby each rocker-bed hanger is made to sustain the other in the manner shown and described.

In testimony WhereofI have signed my name to this specification in the presence or two subscribing witnesses.

GEORGE E. BOYDEN.

Witnesses:

MILLORD CLARK, O. S. DRURY. 

